I got a review version of this French DVD, which was billed as cross between SAW and Hostel. 

Can definitely see the comparison to Hostel, but this was just gratuitous violence.  Typical of the French, had to have the underdog character winning out, all the blokes including her friends died.

I thought Hostel was intelligent and of course scary.

Didn't think so at all for Frontier(s).  It was just a technically well made, but that was about all. 

Checked out the reviews and others obviously disagreed cause it got pretty good raves.